+// SPDX-License-Identifier: GPL-2.0+
/*
* Based on mkimage.c.
*
* Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include "dumpimage.h"
static void usage(void);
-/* image_type_params linked list to maintain registered image types supports */
-static struct image_type_params *dumpimage_tparams;
-
/* parameters initialized by core will be used by the image type code */
static struct image_tool_params params = {
.type = IH_TYPE_KERNEL,
};
-/**
- * dumpimage_register() - register respective image generation/list support
- *
- * the input struct image_type_params is checked and appended to the link
- * list, if the input structure is already registered, issue an error
- *
- * @tparams: Image type parameters
- */
-static void dumpimage_register(struct image_type_params *tparams)
-{
- struct image_type_params **tp;
-
- if (!tparams) {
- fprintf(stderr, "%s: %s: Null input\n", params.cmdname,
- __func__);
- exit(EXIT_FAILURE);
- }
-
- /* scan the linked list, check for registry and point the last one */
- for (tp = &dumpimage_tparams; *tp != NULL; tp = &(*tp)->next) {
- if (!strcmp((*tp)->name, tparams->name)) {
- fprintf(stderr, "%s: %s already registered\n",
- params.cmdname, tparams->name);
- return;
- }
- }
-
- /* add input struct entry at the end of link list */
- *tp = tparams;
- /* mark input entry as last entry in the link list */
- tparams->next = NULL;
-
- debug("Registered %s\n", tparams->name);
-}
-
/*
- * dumpimage_extract_datafile -
+ * dumpimage_extract_subimage -
*
* It scans all registered image types,
* verifies image_header for each supported image type
* returns negative if input image format does not match with any of
* supported image types
*/
-static int dumpimage_extract_datafile(void *ptr, struct stat *sbuf)
+static int dumpimage_extract_subimage(struct image_type_params *tparams,
+ void *ptr, struct stat *sbuf)
{
int retval = -1;
- struct image_type_params *curr;
-
- for (curr = dumpimage_tparams; curr != NULL; curr = curr->next) {
- if (curr->verify_header) {
- retval = curr->verify_header((unsigned char *)ptr,
- sbuf->st_size, ¶ms);
- if (retval != 0)
- continue;
- /*
- * Extract the file from the image
- * if verify is successful
- */
- if (curr->extract_datafile) {
- curr->extract_datafile(ptr, ¶ms);
- } else {
- fprintf(stderr,
- "%s: extract_datafile undefined for %s\n",
- params.cmdname, curr->name);
- break;
+
+ if (tparams->verify_header) {
+ retval = tparams->verify_header((unsigned char *)ptr,
+ sbuf->st_size, ¶ms);
+ if (retval != 0) {
+ fprintf(stderr, "%s: failed to verify header of %s\n",
+ params.cmdname, tparams->name);
+ return -1;
+ }
+
+ /*
+ * Extract the file from the image
+ * if verify is successful
+ */
+ if (tparams->extract_subimage) {
+ retval = tparams->extract_subimage(ptr, ¶ms);
+ if (retval != 0) {
+ fprintf(stderr, "%s: extract_subimage failed for %s\n",
+ params.cmdname, tparams->name);
+ return -3;
}
+ } else {
+ fprintf(stderr,
+ "%s: extract_subimage undefined for %s\n",
+ params.cmdname, tparams->name);
+ return -2;
}
}
int ifd = -1;
struct stat sbuf;
char *ptr;
- int retval = 0;
+ int retval = EXIT_SUCCESS;
struct image_type_params *tparams = NULL;
- /* Init all image generation/list support */
- register_image_tool(dumpimage_register);
-
params.cmdname = *argv;
- while ((opt = getopt(argc, argv, "li:o:p:V")) != -1) {
+ while ((opt = getopt(argc, argv, "hlo:T:p:V")) != -1) {
switch (opt) {
case 'l':
params.lflag = 1;
break;
- case 'i':
- params.imagefile = optarg;
- params.iflag = 1;
- break;
case 'o':
params.outfile = optarg;
+ params.iflag = 1;
+ break;
+ case 'T':
+ params.type = genimg_get_type_id(optarg);
+ if (params.type < 0) {
+ fprintf(stderr, "%s: Invalid type\n",
+ params.cmdname);
+ exit(EXIT_FAILURE);
+ }
break;
case 'p':
params.pflag = strtoul(optarg, &ptr, 10);
case 'V':
printf("dumpimage version %s\n", PLAIN_VERSION);
exit(EXIT_SUCCESS);
+ case 'h':
default:
usage();
+ break;
}
}
- if (optind >= argc)
+ if (argc < 2)
usage();
+ if (optind >= argc) {
+ fprintf(stderr, "%s: image file missing\n", params.cmdname);
+ exit(EXIT_FAILURE);
+ }
+
+ params.imagefile = argv[optind];
+
/* set tparams as per input type_id */
- tparams = imagetool_get_type(params.type, dumpimage_tparams);
+ tparams = imagetool_get_type(params.type);
if (tparams == NULL) {
- fprintf(stderr, "%s: unsupported type %s\n",
+ fprintf(stderr, "%s: unsupported type: %s\n",
params.cmdname, genimg_get_type_name(params.type));
exit(EXIT_FAILURE);
}
* as per image type to be generated/listed
*/
if (tparams->check_params) {
- if (tparams->check_params(¶ms))
- usage();
+ if (tparams->check_params(¶ms)) {
+ fprintf(stderr, "%s: Parameter check failed\n",
+ params.cmdname);
+ exit(EXIT_FAILURE);
+ }
}
- if (params.iflag)
- params.datafile = argv[optind];
- else
- params.imagefile = argv[optind];
- if (!params.outfile)
- params.outfile = params.datafile;
+ if (!params.lflag && !params.outfile) {
+ fprintf(stderr, "%s: No output file provided\n",
+ params.cmdname);
+ exit(EXIT_FAILURE);
+ }
ifd = open(params.imagefile, O_RDONLY|O_BINARY);
if (ifd < 0) {
- fprintf(stderr, "%s: Can't open \"%s\": %s\n",
- params.cmdname, params.imagefile,
- strerror(errno));
+ fprintf(stderr, "%s: Can't open \"%s\": %s\n", params.cmdname,
+ params.imagefile, strerror(errno));
exit(EXIT_FAILURE);
}
- if (params.lflag || params.iflag) {
- if (fstat(ifd, &sbuf) < 0) {
- fprintf(stderr, "%s: Can't stat \"%s\": %s\n",
- params.cmdname, params.imagefile,
- strerror(errno));
- exit(EXIT_FAILURE);
- }
+ if (fstat(ifd, &sbuf) < 0) {
+ fprintf(stderr, "%s: Can't stat \"%s\": %s\n", params.cmdname,
+ params.imagefile, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
- if ((unsigned)sbuf.st_size < tparams->header_size) {
- fprintf(stderr,
- "%s: Bad size: \"%s\" is not valid image\n",
- params.cmdname, params.imagefile);
- exit(EXIT_FAILURE);
- }
+ if ((uint32_t)sbuf.st_size < tparams->header_size) {
+ fprintf(stderr, "%s: Bad size: \"%s\" is not valid image\n",
+ params.cmdname, params.imagefile);
+ exit(EXIT_FAILURE);
+ }
- ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
- if (ptr == MAP_FAILED) {
- fprintf(stderr, "%s: Can't read \"%s\": %s\n",
- params.cmdname, params.imagefile,
- strerror(errno));
- exit(EXIT_FAILURE);
- }
+ ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
+ if (ptr == MAP_FAILED) {
+ fprintf(stderr, "%s: Can't read \"%s\": %s\n", params.cmdname,
+ params.imagefile, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ /*
+ * Both calls bellow scan through dumpimage registry for all
+ * supported image types and verify the input image file
+ * header for match
+ */
+ if (params.iflag) {
/*
- * Both calls bellow scan through dumpimage registry for all
- * supported image types and verify the input image file
- * header for match
+ * Extract the data files from within the matched
+ * image type. Returns the error code if not matched
*/
- if (params.iflag) {
- /*
- * Extract the data files from within the matched
- * image type. Returns the error code if not matched
- */
- retval = dumpimage_extract_datafile(ptr, &sbuf);
- } else {
- /*
- * Print the image information for matched image type
- * Returns the error code if not matched
- */
- retval = imagetool_verify_print_header(ptr, &sbuf,
- tparams, ¶ms);
- }
-
- (void)munmap((void *)ptr, sbuf.st_size);
- (void)close(ifd);
-
- return retval;
+ retval = dumpimage_extract_subimage(tparams, ptr, &sbuf);
+ if (retval)
+ fprintf(stderr, "%s: Can't extract subimage from %s\n",
+ params.cmdname, params.imagefile);
+ } else {
+ /*
+ * Print the image information for matched image type
+ * Returns the error code if not matched
+ */
+ retval = imagetool_verify_print_header(ptr, &sbuf, tparams,
+ ¶ms);
}
+ (void)munmap((void *)ptr, sbuf.st_size);
(void)close(ifd);
- return EXIT_SUCCESS;
+ return retval;
}
static void usage(void)
" -l ==> list image header information\n",
params.cmdname);
fprintf(stderr,
- " %s -i image [-p position] [-o outfile] data_file\n"
- " -i ==> extract from the 'image' a specific 'data_file'"
- ", indexed by 'position' (starting at 0)\n",
+ " %s [-T type] [-p position] [-o outfile] image\n"
+ " -T ==> declare image type as 'type'\n"
+ " -p ==> 'position' (starting at 0) of the component to extract from image\n"
+ " -o ==> extract component to file 'outfile'\n",
+ params.cmdname);
+ fprintf(stderr,
+ " %s -h ==> print usage information and exit\n",
params.cmdname);
fprintf(stderr,
" %s -V ==> print version information and exit\n",
params.cmdname);
- exit(EXIT_FAILURE);
+ exit(EXIT_SUCCESS);
}
projects / oweals / u-boot.git / blobdiff